Antirattling device for window-blinds.



A. P. ANDERSON.

ANTIRATTLING DEVICE FOR WINDOW BLINDS.'

APPLICATION FILED SEPT- I I, 1915.

Patented Nov. 16, 1915.

3W H F HNoEKemN COLUMBIA Puuvoumn coqwAsnma'roN D c res ATEN Fro.

ANTIRATTLING DEVICE Specification of Letters Patent.

FOR WINDOW-BLINDS.

Patented Nov. 16, 1915.

Application filed September 11, 1915. Serial No. 50,262.

To all whom it may concern I Be it known that I, AUoUs'r P. ANDERSON, acitizen of the United States, residing at Newport, in the county ofNewport and State of Rhode Island, have invented certain new and usefulImprovements in Antirattling Devices for lVindow-Blinds, of which thefollowing is a specification, reference being had to the accompanyingdrawings.

This invention relates to an improved anti-rattling device for windowblinds and hasfor its primary object to provide a simple, inexpensiveand very effective device, whereby the blind may be securely held inits' open position against rattling or banging against the wall of thebuilding.

It is a more particular object of the invention to provide a device forthe above purpose constructed from a single piece of resilient metaladapted to be securely fixed intermediate of its ends to the buildingwall and having curved spring terminals of relatively different lengths,one of which is adapted to bear against theframe of the blind and theother against one of the pivoted slats of the blind or shutter, wherebythe blind will be held against movement relative to the Wall and theshutter slats-will also be held against movement in the blind.

With the above and other objects in view, my invention consists in thenovel features of construction, combination, and arrange ment ofparts tobe hereinafter more fully described, claimed, and illustrated in the accompanying drawing, in which,

Figure 1 is a vertical sectional view through a blind, illustrating theapplication of the preferred embodiment of my invention; Fig. 2 is asection taken on the line 2-2, of Fig. 1; Fig. 8 is a perspective viewof the device detached from the building wall.

Referring in detail to the drawing, 5 designates the window blind whichis mounted at one of its vertical edges upon hinges indicated at 6 forswinging movement. This blind is equipped with the usual ventilatingshutter embodying a series of spaced pivotedly mounted slats 7 which areloosely connected at their medial portions by an operating bar or rod 8.In the bottom portion of the blind frame, adjacent its free or verticaledge, a hook 9 is pivotally mounted in any preferred manner and the billof this hook is adapted for engagement with an eye 10 projecting fromthe face of the building wall.

My improved blind holding device consists of a single length ofresilient steel 11 having a straight medial portion provided with spacedopenings 12 for the reception of suitable fastening screws 13 wherebythe device may be securely fixed upon the face of the building wall,'asshown in Fig. 1. The holding device is preferably located on the wall ata point which. will be substantially mid-way between the oppositevertical edges of the blind when the same is open and adjacent to thelower end of the blind. The length of resilient steel is of uniformthickness throughout and from the straight medial portion thereof, thesteel plate is formed into an upper reversely curved spring arm 14, saidarm being provided with a comparatively wide downwardly curved section15 and a relatively small reversely curved terminal bend 16. At theother end of the resilient steel plate, the same is formed into a lowercurved spring arm 17 which is considerably shorter than the upper arm 14and offers greater resistance to a laterally applied pressure. This armterminates in a substantially circularly curved bend or loop 18. Theresilient steel spring plate also preferably tapers in widthlongitudinally from its intermediate portion to its extremities.

Upon referring to Fig. 1 of the drawings, the operation of the device inpractical use will be readily understood. When the blind is swungoutwardly to its open position so that the hook 9 will engage in the eye10, the lower horizontal frame bar of the blind will bear against theterminal loop 18 of the lower relatively short spring arm 17 withsufiicient pressure to place said springnrm under tension so that thesame will exert an outward force against the blind and thus hold thebill of the hook 9 tightly in engagement with the medial portion of themetal eye 10. The terminal loop 10 of the relatively long upper springarm 14 will be engaged by the lower shutter slat 7, below the plane ofits pivotal axis and will also exert a pressure thereon so that theseries of slats will be held against movement relative to the blindframe. In this manner, the blind and its shutter are securely held, whenin open position, against movement with respect to the wall of thebuilding, so that rattling or slamming of the same and the resultantobjectionable noise, is obviated. 1

From the foregoing description taken in connection with the accompanyingdrawing, it will be seen that I have produced a simple, reliable andhighly convenient blind holding device, which can be readily applied tothe building walland does not require any structural alterationswhatever in the blind. The steel springs can be conveniently cut out ofa metal sheet by means of a suitable die, sothat the device can be veryinexpensively manufactured.

\VhileI have shown and described what I believe to be the preferredembodiment of the device, it is to be understood that the same issusceptible of considerable modi I fication therein and I thereforereserve the privilege of adopting all such legitlmate changes as may befairly embodied within the spirit and scope of the invention, asclaimed.

Having thus described this invention, What I desire to claim as new andsecure by Letters Patent, is z 1. A blind holding device comprising asingle element adapted to be fixed to a building wall and having meansto engage the blind and hold the same against swinging movement when inits open position, and additional means to engage one of the shutterslats of the blind and hold the shutter against movement with respect tothe blind frame; i

2. .Ablind holder comprising a single resilient metal plate adapted tobe fixed at its medial portion to a building'wall, and having spacedspring arms of relatively different lengths, one of said arms beingadapted to engage the blind when the same is 1n its open position andhold said blind against swinging movement and the other of said armshaving bearing engagement with one of the shutter slats to hold theshutter against movement with relation to I the blind frame.

3. The combination with a window blind provided with a slat shutter, andmeans for ing upon one of the shutter slats to holdthe shutter againstmovement with respect to the blind frame. i

In testimony whereof I hereunto affix vmy signature in the presence oftwo witnesses.

' AUGUST P. ANDERSON.

Witnesses:

JOHN C. CAMPBELL, v

JOHN H. GREENE, Jr.

VCQPiES'Of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents; I

Washington, 1),.0. i 1

